Metal lath.



PATENTED AUG. 30, 1904.

J. F. MALONE.

METAL LATE.

APPLICATION FILED FEB. s. 1904.

I mmm HIHHULZ No MODEL.

' Cm. Hymmiff.' Witnesses.

NTTED STATES Patented August 30, 1904.

PATENT Ormea.

JOHN F. MALONE, OF BUFFALO, NEW YORK, ASSIGNOR TO BUFFALO FIRE PROOF LATH COMPANY, OF BUFFALO, NEW YORK, A OOR- PORATION OF NEV YORK.

METAL LATI-ll.

SPECIFICATION forming part of Letters Patent N0. 768,947, dated August 30, 1904.

Application filed February 6, 1904. Serial No. 192,321. (No model.)

T0 all wbmn it mm1/y concern:

Be it known that I, Joni: F. MALONE, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Metal Laths, of which the following is a specification.

This invention relates to an improved form of metal lath, which is pressed or otherwise formed from suitable sheet metal and is provided with a plurality of raised and depressed members arranged in rows and one or more corrugations extendingl throughout said members.

The object of the invention is to strengthen and stiften the members throughout by forming therein continuous reinforcing-corrugations.

The invention also relates to certain novel details of construction, all of which will be fully and clearly hereinafter described and claimed, reference being' had to the accompanying drawings, in which a preferred adaptation of the lath is shown.

Figure l is a top plan or face view of a fragment of my preferred adaptation of my improved metal lath. Fig. 9. is a longitudinal section on line c a., Fig. l. Fig. 3 is a longitudinal section on line Fig. l. Fig. 4L is a transverse section on line c c, Fig. l. Fig. is a transverse section on line Z d, Fig. 1.

In referring to the drawings in detail like numerals designate like parts.

In the preferred adaptation of the invention illustrated in the accompanying' drawings the completed metal lath is formed so that both sides are practically the same, the raised members on one side constituting depressed mem- -bers on the opposite side and the raised longitudinal ribs on one side forming longitudinal recesses upon the opposite side, thus making the lath reversible.

Viewingone face or side of a completed lathsheet, as shown in Fig'. I, it will be notedthat it is provided with a series of members or parts I and 2, which are bent or faced outwardly from the plane of the sheet. rIhese members are in longitudinal columns and in alternate sequence-that is, for instance, with the members of the first longitudinal column raised and the members of the next or second column depressed--so that the members of each longitudinal column extend opposite to the members of the immediately adjacent column on either or both sides. The members in each longitudinal column are separated from each other by substantially iat portions 3. The raised and depressed members form a series of transverse rows with the raised and depressed members thereof located in alternate arrangement and separated by longitudinal slits 4.

The raised and depressed members are strengthened and stiffened throughout by corrugations which extend through the metallath sheet. In the preferred adaptation these corrugations extend oppositely to the members through which they pass and are arranged in alternate sequence to correspond with the alternate arrangement of the members. In the adaptation illustrated the corrugations are in alternate pairs, with each pair extending,longitudinally throughout the metal sheet and througlrone of the longitudinal rows and projecting oppositely to the mem-bers of said rows, so that the raised or projecting members l are provided with one or more longitudinal recesses or grooves 5 in their projecting facesand the depressed members 2 with one or more longitudinal raised or projecting ribs 6. It will be noted that the corrugations extend completely throughout the metal-lath sheet and form aseries of continuous stiffening-ribs for the raised and depressed members l and 2 and the intervening flat portions 3, so that the lath is strengthened and stiened longitudinally throughout.

rIhe lath `is formed by first passing a substantially flat sheet through corrugating mechanism and then through slitting' and lath-forming mechanism.

One of the great advantages of this improved lath is that the raised members are strengthened and stiffened entirely throughout by longitudinal corrugations, which also form one or more narrow longitudinal recesses on the projecting side or face of each raised member, in which a portion of the plaster can be locked completely across the faceA of the member, thereby locking or anchoring the plaster very securely to the sheet and like- Wise reinforcing the corrugations by longitudinal keys of plaster itted snugly in the recesses.

I claim as my inventionl. A metal lath having a series of alternate raised and depressed members separated by slits and a series of longitudinal corrugations arranged in alternate order and extending oppositely to the members through which they pass.

2. A metal lath having a series of alternate raised and depressed members separated by slits, and a series of longitudinal corrugations arranged in alternate pairs and with each pair extending oppositely to the members through which they pass.

3. A metal lath having a series of members separated by slits, and each member constil JOHN F. MALONE.

Witnesses:

L. M. SANGSTER, Guo. A. N EUBAUER. 

